Burglar-alarm and locking device.



PATENTED AUG. 30, 1904.

S. G. LAWLOR. BURGLAR ALARM AND LOCKING DEVICE.

APPLICATION FILED SEPT. 23. 1903.

N0 MODEL.

SIMEO/Y C. LAWLOR %M Patented August 30, 1904.

EEicE.

PATENT SIMEON O. LAVVLOR, OF DULUTH, MINNESOTA.

BURGLAR-ALARM AND LOCKING DEVICE.

SPECIFICATION forming part of Letters Patent No. 768,762, dated August 30, 1904:.

Application filed September 23, 1903. Serial No. 174,332. (No model.)

To aZZ whom it may concern.-

Be it known that I, SIMEON C. LAWLOR, a citizen of the United States, residing at Duluth, Minnesota, have invented certain new and useful Improvements in Burglar-Alarms and Looking Devices, of which the following is a specification.

My invention has for its object to provide an improved locking and alarm attachment for windows, doors, and the like; and it consists in a simple and safe attachment which may be easily applied and removed at will from any window or door.

The invention is illustrated in the accompanying drawings, in which- Figure 1 is a perspective view of one form of my invention. Fig. 2 is a rear view of the device shown in Fig. 1. Fig. 3 is aplan view of the device shown in Fig. 1. Fig. 4 is a side View showing a bell and keeper arranged on the toothed bar. Fig. 5 is a detail view of the keeper. Fig. 6 represents the device applied to the meeting-rails of the sashes. Fig. 7 represents the device applied to a door.

My invention may be applied to the lower portion of a window and window-sill at the junction of the lower and upper sash or may be further applied to any door.

In Fig. 1 my invention is shown as applied to the window-sill, having connection with the lower sash, as described below. 1 is a bar, having one of its ends turned at right angles, as at 2, in the form of a spur to engage the window-sill 3. The body of said bar extends upwardly between the sill and lower sash, and to said bar above the sill the locking and alarm attachment is secured. This is arranged as follows: The bar 1 is slotted for the greater part of its length, as at 4:, and each side of said slot for a little over half its length is toothed, as at 5. To this toothed bar is removably locked the bell or alarm 6, having on each side slots 7 7 to receive the said toothed bar. To the upper portion of the bell or alarm 6 a lever 8 is pivotally secured at 9, said lever conforming to the rounded surface of the bell-casing and having a th umb portion bent up at 10, a small projection 11 bent down to engage a slot 12, cut at right angles to the upper slot 7 in the bell, and still another projection 13, adapted to engage with the ratchetteeth 5 of the bar 1 to lock said bell in the desired position. On the side of the bell opposite to that carrying the lever 3 a push-button 1 1 is provided adapted to operate the bell mechanism, causing the alarm to be sounded when pressed upwardly, this being accomplished as follows: The lower end of the bar 1 is provided with an elongated slot 15, in which slides the shank of a thumb-screw 16, screwed into the lower portion of the sash. Thus when the sash is partly raised, the head of the screw coming in contact with the pushbutton 11 causes the bell to ring.

In Fig. 4 a different application of my device is shown, in which the alarm mechanism may be removed or attached without aifecting the locking power of the device. In this case a keeper 17 is provided of the shape as shown in Fig. 5, having a projection 18 bent at an angle to the body thereof, the said body having an elongated slot 19 loosely receiving the bar 1. When thesaid body is tilted downward by the projection 18 being forced upwardly by engagement with the window-sash, as shown, the said ratchet-teeth are engaged by a tongue 20, projecting from the body of the keeper into the slot 19, the bar being secured to the window-sill, as described, by the bent end or spur. It will thus be seen that the application of the keeper does not in any way affect the use of the alarm mechanism, which may be used or not, as desired.

In the third application of my device the bar is passed through the slots 7 7 in the reverse direction from that above and the bar is made to stand upon the top rail of the lower sash, the spur in such case operating as a foot. A thumb-screw 21 is then passed into the side rail of the upper sash through the slot in the bar and above the push-button of the bell. The thumb-screw will thus operate to keep the bar vertical in position. If now the top sash is lowered, it carries the thumbscrew down against the push-botton to operate the bell, and if the lower sash is raised it carries the bar and bell upward against the thumb-screw, which operates the bell. By

lowering the top sash a trifle before inserting the thmnbscrew ventilation can be secured and the further opening of the window prevented.

In the fourth application of my device shown in Fig. '7 the toothed bar is placed between the door and its casing, the bent-over end or spur being driven into the casing. The bell is then mounted on the bar with the push-botton toward the door and on that side of the bar which is nearest the door, and the bell is locked on the bar by said lever, as heretofore described. An attempt to open the door causes the bell to ring, and the bell locked upon the toothed bar prevents the further movement of the door.

My device may also be operated in other ways, and I do not, therefore, desire to be restricted to the particular methods of operation herein described.

1 claim 1. In combination, a toothed bar having means whereby it may be attached to a part of a window or door a keeper having a slotted connection with the bar and having a tongue to engage the teeth of the bar, said keeper being adapted to slide on the bar and to engage a part of the window or door, and a bell with means for adjusting the same on the bar independent of the keeper, said bell having a push-button to be operated by a part of the window or door, substantially as described.

2. In combination, a bar having means whereby it may be attached to the window or door and having two rows of teeth thereon and a bellslidable on the said bar and having a pivoted lever to engage both rows of teeth simultaneously, said lever having movement in a direction from one plain face of the bar toward the other plain face and transversely of the teeth, substantially as described.

3. In combination, a bar having a central slot with the rows of teeth along the same, a bell having its casing slotted to receive the bar and a lever on the bell to engage the teeth of the bar, substantially as described.

4. In combination, a bar having a central slot with the rows of teeth along the same, a bell having its casing slotted to receive the bar and a lever on the bell to engage the teeth of the bar, said lever being curved to conform to the bell-casing and having a projecting portion guided in a slot in the bell-casing, sub stantially as described.

5. In combination, a bar having a spur whereby it may be attached to a part of the window or door, a bell adjustably mounted on the said bar and having a pushbutton conneeted therewith and a screw passing through a slot in the bar and into a part of the window, said screw being adapted to operate the push-button of the bell, substantially as described.

6. In combination with the upper and lower sashes of a window, of a bar erected upon the top rail of the lower sash, a bell mounted upon said bar and provided with an up wardl yextending push-button, a thumb-screw extending over said push-button and through said bar and into a portion of said upper sash, substantially as described.

In testimony whereof I aflix my signature in presence of two Witnesses.

SIMEON C. LAWLOR.

Witnesses:

J. GOLDMAN, WVM. C. ORTHEY. 

